X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1fc5dd6f8eb590992150b3998266fb50dfaab227..f17fee68eac048a593e83f3a74d8a74f6a7ddacb:/include/wx/dbtable.h diff --git a/include/wx/dbtable.h b/include/wx/dbtable.h index 0fa4fef0b9..79cb77f90c 100644 --- a/include/wx/dbtable.h +++ b/include/wx/dbtable.h @@ -1,5 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: table.h +// Name: dbtable.h // Purpose: Declaration of the wxTable class. // Author: Doug Card // Modified by: @@ -23,16 +23,30 @@ // SYNOPSIS STOP */ -#ifndef TABLE_DOT_H -#define TABLE_DOT_H +#ifndef DBTABLE_DOT_H +#define DBTABLE_DOT_H -#ifdef __GNUG__ -#pragma interface "dbtable.h" +// Use this line for wxWindows v1.x +//#include "wx_ver.h" +// Use this line for wxWindows v2.x +#include "wx/version.h" + +#if wxMAJOR_VERSION == 2 + #ifdef __GNUG__ + #pragma interface "dbtable.h" + #endif #endif -#include "wx/db.h" +#if wxMAJOR_VERSION == 2 + #include "wx/db.h" +#else + #include "db.h" +#endif -const ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger +const int ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger +const int DEFAULT_CURSOR = 0; +const bool QUERY_ONLY = TRUE; +const bool DISABLE_VIEW = TRUE; // The following class is used to define a column of a table. // The wxTable constructor will dynamically allocate as many of @@ -43,10 +57,10 @@ const ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger // source, exchange data between the data source and the C++ // object, and so on. -class CcolDef +class WXDLLEXPORT CcolDef { public: - char ColName[DB_MAX_COLUMN_NAME_LEN+1]; // Column Name glt 4/19/97 added one for the null terminator + char ColName[DB_MAX_COLUMN_NAME_LEN+1]; // Column Name int DbDataType; // Logical Data Type; e.g. DB_DATA_TYPE_INTEGER int SqlCtype; // C data type; e.g. SQL_C_LONG void *PtrDataObj; // Address of the data object @@ -56,30 +70,33 @@ public: bool InsertAllowed; // Specifies whether this column should be included in an INSERT statement bool DerivedCol; // Specifies whether this column is a derived value SDWORD CbValue; // Internal use only!!! + bool Null; // NOT FULLY IMPLEMENTED - Allows NULL values in Inserts and Updates }; // CcolDef // This structure is used when creating secondary indexes. -class CidxDef +class WXDLLEXPORT CidxDef { public: - char ColName[DB_MAX_COLUMN_NAME_LEN+1]; // Column Name glt 4/19/97 added one for the null terminator + char ColName[DB_MAX_COLUMN_NAME_LEN+1]; bool Ascending; }; // CidxDef -class wxTable +class WXDLLEXPORT wxTable { private: + ULONG tableID; // Used for debugging. This can help to match up mismatched constructors/destructors + // Private member variables - int currCursorNo; + UDWORD cursorType; // Private member functions bool bindInsertParams(void); bool bindUpdateParams(void); bool bindCols(HSTMT cursor); bool getRec(UWORD fetchType); - bool execDelete(char *pSqlStmt); - bool execUpdate(char *pSqlStmt); + bool execDelete(const char *pSqlStmt); + bool execUpdate(const char *pSqlStmt); bool query(int queryType, bool forUpdate, bool distinct, char *pSqlStmt = 0); public: @@ -91,17 +108,20 @@ public: HENV henv; // ODBC Environment handle HDBC hdbc; // ODBC DB Connection handle HSTMT hstmt; // ODBC Statement handle -// HSTMT c0, c1, c2, c3, c4, c5; // Cursors 0 through 5 - HSTMT c0, c1, c2; // Limited to Cursors 0 through 2 for now + HSTMT *hstmtDefault; // Default cursor HSTMT hstmtInsert; // ODBC Statement handle used specifically for inserts HSTMT hstmtDelete; // ODBC Statement handle used specifically for deletes HSTMT hstmtUpdate; // ODBC Statement handle used specifically for updates - HSTMT hstmtCount; // ODBC Statement handle used specifically for COUNT(*) + HSTMT hstmtInternal; // ODBC Statement handle used internally only + HSTMT *hstmtCount; // ODBC Statement handle used by Count() function (No binding of columns) // Table Inf. char tableName[DB_MAX_TABLE_NAME_LEN+1]; // Table name char queryTableName[DB_MAX_TABLE_NAME_LEN+1]; // Query Table Name int noCols; // # of columns in the table + bool queryOnly; // Query Only, no inserts, updates or deletes + + char tablePath[DB_PATH_MAX]; // needed for dBase tables // Column Definitions CcolDef *colDefs; // Array of CcolDef structures @@ -109,24 +129,27 @@ public: // Where, Order By and From clauses char *where; // Standard SQL where clause, minus the word WHERE char *orderBy; // Standard SQL order by clause, minus the ORDER BY - char *from; // Allows for joins in a Ctable::Query(). Format: ",tbl,tbl..." + char *from; // Allows for joins in a wxTable::Query(). Format: ",tbl,tbl..." // Flags bool selectForUpdate; // Public member functions - wxTable(wxDB *pwxDB, const char *tblName, const int nCols, const char *qryTblName = 0); - ~wxTable(); + wxTable(wxDB *pwxDB, const char *tblName, const int nCols, + const char *qryTblName = 0, bool qryOnly = !QUERY_ONLY, const char *tblPath=NULL); + virtual ~wxTable(); bool Open(void); - bool CreateTable(void); - bool CreateIndex(char * idxName, bool unique, int noIdxCols, CidxDef *pIdxDefs); + bool CreateTable(bool attemptDrop=TRUE); + bool DropTable(void); + bool CreateIndex(const char * idxName, bool unique, int noIdxCols, CidxDef *pIdxDefs, bool attemptDrop=TRUE); + bool DropIndex(const char * idxName); bool CloseCursor(HSTMT cursor); int Insert(void); bool Update(void); - bool Update(char *pSqlStmt); - bool UpdateWhere(char *pWhereClause); + bool Update(const char *pSqlStmt); + bool UpdateWhere(const char *pWhereClause); bool Delete(void); - bool DeleteWhere(char *pWhereClause); + bool DeleteWhere(const char *pWhereClause); bool DeleteMatching(void); virtual bool Query(bool forUpdate = FALSE, bool distinct = FALSE); bool QueryBySqlStmt(char *pSqlStmt); @@ -134,31 +157,41 @@ public: bool QueryOnKeyFields(bool forUpdate = FALSE, bool distinct = FALSE); bool GetNext(void) { return(getRec(SQL_FETCH_NEXT)); } bool operator++(int) { return(getRec(SQL_FETCH_NEXT)); } -#ifndef FWD_ONLY_CURSORS - bool GetPrev(void) { return(getRec(SQL_FETCH_PRIOR)); } - bool operator--(int) { return(getRec(SQL_FETCH_PRIOR)); } - bool GetFirst(void) { return(getRec(SQL_FETCH_FIRST)); } - bool GetLast(void) { return(getRec(SQL_FETCH_LAST)); } -#endif + + /***** These four functions only work with wxDB instances that are defined ***** + ***** as not being FwdOnlyCursors *****/ + bool GetPrev(void); + bool operator--(int); + bool GetFirst(void); + bool GetLast(void); + bool IsCursorClosedOnCommit(void); bool IsColNull(int colNo); UWORD GetRowNum(void); void GetSelectStmt(char *pSqlStmt, int typeOfSelect, bool distinct); - void GetDeleteStmt(char *pSqlStmt, int typeOfDel, char *pWhereClause = 0); - void GetUpdateStmt(char *pSqlStmt, int typeOfUpd, char *pWhereClause = 0); - void GetWhereClause(char *pWhereClause, int typeOfWhere, char *qualTableName = 0); + void GetDeleteStmt(char *pSqlStmt, int typeOfDel, const char *pWhereClause = 0); + void GetUpdateStmt(char *pSqlStmt, int typeOfUpd, const char *pWhereClause = 0); + void GetWhereClause(char *pWhereClause, int typeOfWhere, const char *qualTableName = 0); bool CanSelectForUpdate(void); bool CanUpdByROWID(void); void ClearMemberVars(void); bool SetQueryTimeout(UDWORD nSeconds); - void SetColDefs (int index, char *fieldName, int dataType, void *pData, int cType, + void SetColDefs (int index, const char *fieldName, int dataType, void *pData, int cType, int size, bool keyField = FALSE, bool upd = TRUE, bool insAllow = TRUE, bool derivedCol = FALSE); - bool SetCursor(int cursorNo = DB_CURSOR0); - int GetCursor(void) { return(currCursorNo); } - ULONG Count(void); + HSTMT *NewCursor(bool setCursor = FALSE, bool bindColumns = TRUE); + bool DeleteCursor(HSTMT *hstmtDel); + void SetCursor(HSTMT *hstmtActivate = (void **) DEFAULT_CURSOR); + HSTMT GetCursor(void) { return(hstmt); } + ULONG Count(const char *args="*"); int DB_STATUS(void) { return(pDb->DB_STATUS); } bool Refresh(void); + bool SetNull(int colNo); + bool SetNull(const char *colName); + +#ifdef __WXDEBUG__ + ULONG GetTableID() { return tableID; }; +#endif }; // wxTable